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Strings as Primary Keys in SQL Database [closed]
...e to be the primary key then you should probably use it. This all depends on the size of the table you're making it for and the length of the string that is going to be the primary key (longer strings == harder to compare). I wouldn't necessarily use a string for a table that has millions of rows, ...
Could not open a connection to your authentication agent
...h-agent -s`
ssh-add
Note that this will start the agent for msysgit Bash on Windows. If you're using a different shell or operating system, you might need to use a variant of the command, such as those listed in the other answers.
See the following answers:
ssh-add complains: Could not open a c...
Google maps API V3 - multiple markers on exact same spot
Bit stuck on this one. I am retrieving a list of geo coords via JSON and popping them onto a google map. All is working well except in the instance when I have two or more markers on the exact same spot. The API only displays 1 marker - the top one. This is fair enough I suppose but would like t...
Cookies vs. sessions
I started using PHP a couple of months ago. For the sake of creating a login system for my website, I read about cookies and sessions and their differences (cookies are stored in the user's browser and sessions on the server). At that time, I preferred cookies (and who does not like cookies?!) and j...
Differences between socket.io and websockets
...d websockets in
node.js?
Are they both server push technologies?
The only differences I felt was,
8 Answers
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The definitive guide to form-based website authentication [closed]
... Overflow should not just be a resource for very specific technical questions, but also for general guidelines on how to solve variations on common problems. "Form based authentication for websites" should be a fine topic for such an experiment.
...
AngularJS performs an OPTIONS HTTP request for a cross-origin resource
...s-origin resource where the asset host which delivers my template files is on a different domain and therefore the XHR request that angular performs must be cross-domain. I've added the appropriate CORS header to my server for the HTTP request to make this work, but it doesn't seem to work. The prob...
Build android release apk on Phonegap 3.x CLI
How can I build an android app locally using the Phonegap 3.x CLI, ready to release? I check the bin folder generated inside the platforms/android directory of the project, and only has .debug APKs.
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Hide Twitter Bootstrap nav collapse on click
...
try this:
$('.nav a').on('click', function(){
$('.btn-navbar').click(); //bootstrap 2.x
$('.navbar-toggle').click(); //bootstrap 3.x by Richard
$('.navbar-toggler').click(); //bootstrap 4.x
});
...
What's the difference between a proxy server and a reverse proxy server? [closed]
...ll try to add some examples.
First of all, the word "proxy" describes someone or something acting on behalf of someone else.
In the computer realm, we are talking about one server acting on the behalf of another computer.
For the purposes of accessibility, I will limit my discussion to web proxie...